86399899 ÷ 752 
Our goal is to divide 86399899 by 752.

Step 1:
752 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 752

Going ahead to step 2:
752 goes into 86 0 times with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Take the next digit (3) from the dividend and append it to 86, then repeat: 863 / 752

Advancing to step 3:
If we divide 863 by 752, we get 1 and a remainder of 111.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 752 from 863 leaves us with 111.
Grab the next digit (9) from the dividend, add it to 111, then carry on: 1119 / 752

On to step 4:
1119 divided by 752 is 1 with a remainder of 367.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Deduct 752 from 1119 and we're left with 367.
Fetch the next digit (9) from the dividend, attach it to 367 and continue: 3679 / 752

Advancing to step 5:
If we divide 3679 by 752, we get 4 and a remainder of 671.
The number 4 becomes the next digit in our result. 
Result so far: 114.0
Deduct 3008 from 3679 and we're left with 671.
Include the next digit (8) from the dividend after 671, then repeat: 6718 / 752

Advancing to step 6:
If we divide 6718 by 752, we get 8 and a remainder of 702.
Put 8 as the next digit of the answer. 
Result so far: 1148.0
If we subtract 6016 from 6718, we get 702.
Bring next digit (9) of the dividend behind the 702 and repeat the process: 7029 / 752

On to step 7:
If we divide 7029 by 752, we get 9 and a remainder of 261.
Record the quotient 9 as the next digit in the result. 
Result so far: 11489.0
If we take 6768 away from 7029, we end up with 261.
Grab the next digit (9) from the dividend, add it to 261, then carry on: 2619 / 752

Advancing to step 8:
The number 752 fits into 2619 3 times, leaving a remainder of 363.
Use 3 as the next digit of our solution. 
Result so far: 114893.0
If we subtract 2256 from 2619, we get 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

Step 9:
When dividing 3630 by 752, we get 4 with a remainder of 622.
Record the quotient 4 as the next digit in the result. 
Result so far: 114893.4
If we take 3008 away from 3630, we end up with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Moving on to step 10:
When dividing 6220 by 752, we get 8 with a remainder of 204.
Record the quotient 8 as the next digit in the result. 
Result so far: 114893.48
The remainder is 204 after subtracting 6016 from 6220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 11:
752 can be fit into 2040 2 times, resulting in a remainder of 536.
The number 2 becomes the next digit in our result. 
Result so far: 114893.482
The remainder is 536 after subtracting 1504 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 12:
5360 divided by 752 is 7 with a remainder of 96.
Use 7 as the next digit of our solution. 
Result so far: 114893.4827
If we subtract 5264 from 5360, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 13:
If we divide 960 by 752, we get 1 and a remainder of 208.
The number 1 becomes the next digit in our result. 
Result so far: 114893.48271
Subtract 752 from 960 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 14:
752 goes into 2080 2 times with a remainder of 576.
Put 2 as the next digit of the answer. 
Result so far: 114893.482712
The remainder is 576 after subtracting 1504 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Step 15:
The number 752 fits into 5760 7 times, leaving a remainder of 496.
Use 7 as the next digit of our solution. 
Result so far: 114893.4827127
Subtracting 5264 from 5760 leaves us with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Moving on to step 16:
If we divide 4960 by 752, we get 6 and a remainder of 448.
Record the quotient 6 as the next digit in the result. 
Result so far: 114893.48271276
Subtract 4512 from 4960 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

The final result is 114893.48271276 with a remainder of 4.48e-07.